Sylvania



(No Model.)

H. H. SAWYER. CEILING PLATE FOR ELECTRIC LIGHTS. No. 417,685. Patented Dec. 1'7, 1889.

. LJJ WITNESSES. l VENTOR. (yaw w) J6 rg yam, BY ATTORNEX i UNITED STATES PATENT QFFICEQ HARRY H. SAVVYER, OF RIDLEY PARK, ASSIGNOR OF ONE-HALF TO THE THAOKARA MANUFACTURING COMPANY, OF PHILADELPHIA, PENN- SYLVANIA.

SPECIFICATION forming part of Letters Patent No. 417,685, dated December 17, 1889. Application filed July 3, 1889, Serial No. 316,393. (No model.)

To all whom it may concern.-

Be it known that I, HARRY H. SAWYER, a citizen of the United States, residing at Ridley Park, in the county of Delaware and State of Pennsylvania, have invented a new and useful Improvement in Ceiling-Plates for Electric Lights, which improvement is fully .set forth in the following specification and Similar letters of reference indicate corresponding parts in the two figures.

Referring to the drawings, A designates a ceiling-plate, which, excepting the features of my invention applied thereto, is of usual construction.

B designates a pipe, rod, or support of an electric light, the same passing through said plate A. \Vithin the central opening of the plate A is fitted an annulus or disk 0, of insulated material, through whichpass the electric wires D and said pipe or rod B. It will be seen that the plate A is insulated from the wires D, and also from the rod or pipe B. Openings are formed in the diskfor the passage of wires, and additional openings may be made therein should the number'of wires be increased.

It is well known that heretofore ceilingplates have been pierced for the passage of electric wires therethrough; but said wires, owing to their contact with the edges of the openings in said plates, have been liable to be cut or abraded, thus producing short circuits, which are dangerous owing to their lia bilty to occasion fire around the plates. This is prevented by the provision of the insulator on the ceiling-plate, the same being of annular form to allow the rod or pipe of the light and the wires to pass through the same without affecting the nature of either part.

The insulator and plate are held in position by the easing-pipe E, the upper end whereof has the insulator resting upon it, the plate resting upon a shoulder F on the insulator, it being seen that as the plate is supported on the shoulder of the disk, and the latter sustained by thepipe whose end forms a shoulder against which the disk abuts, said plate and disk are nicely held in position.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination of the electric-light support B, with the surrounding ceiling-plate A, the insulating-disk O, fitted in the central opening of the ceiling-plate and having the shoulders F 011 which the ceiling-plate rests, and openings through which pass the electric wires D, and the casing-pipe E, surrounding the electric-light support B and supporting the insulatin g-disk,substantially as described.

HARRY H. SA\VYER.

Vitnesses:

JOHN A. WIEDERSHEIM, L. JENNINGS. 

